New Effects in Gauge Theory from pp-wave Superstrings
High Energy Physics - Theory
2009-11-07 v2
Abstract
It has recently been observed that IIB string theory in the pp-wave background can be used to calculate certain quantities, such as the dimensions of BMN operators, as exact functions of the effective coupling lambda' = lambda/J^2. These functions interpolate smoothly between the weak and strong effective coupling regimes of N=4 SYM theory at large R charge J. In this paper we use the pp-wave superstring field theory of hep-th/0204146 to study more complicated observables. The expansion of the three-string interaction vertex suggests more complicated interpolating functions which in general give rise to fractional powers of lambda' in physical observables at weak effective coupling.
Cite
@article{arxiv.hep-th/0206221,
title = {New Effects in Gauge Theory from pp-wave Superstrings},
author = {Igor R. Klebanov and Marcus Spradlin and Anastasia Volovich},
journal= {arXiv preprint arXiv:hep-th/0206221},
year = {2009}
}
Comments
12 pages, 1 figure, harvmac